II. Classification

  1. Class 0: Asymptomatic
  2. Class 1: Angina with strenuous Exercise
  3. Class 2: Angina with moderate exertion
  4. Class 3: Angina with mild exertion
    1. Walking 1-2 level blocks at normal pace
    2. Climbing 1 flight of stairs at normal pace
  5. Class 4: Angina at any level of physical exertion

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